The key to all sciences is unquestionably the question mark. To the word How? we owe most of our greatest discoveries. Wisdom in life may perhaps consist in asking ourselves on all occasions: Why?
Love has its own instinct, finding the way to the heart, as the feeblest insect finds the way to its flower, with a will which nothing can dismay nor turn aside.
[Raphael's] great superiority is due to the instinctive sense which, in him, seems to desire to shatter form. Form is, in his figures, what it is in ourselves, an interpreter for the communication of ideas and sensations, an exhaustless source of poetic inspiration. Every figure is a world in itself, a portrait of which the original appeared in a sublime vision, in a flood of light, pointed to by an inward voice, laid bare by a divine finger which showed what the sources of expression had been in the whole past life of the subject.
Marriageable girls as well as mothers understand the terms and perils of the lottery called wedlock. That is why women weep at a wedding and men smile.
The habits of every animal are, at least in the eyes of man, constantly similar in all ages. But the habits, the clothes, the words and the dwelling of a prince, a banker, an artist, a bourgeois, a priest and a pauper, are wholly dissimilar and change at the will of civilizations.
On the moral plane, true friends enjoy the same protection as the sense of smell confers upon dogs. They scent the sorrow of their friends, they divine its causes, and they clasp it to their minds and hearts.
Thought is a key to all treasures; the miser's gains are ours without his cares. Thus I have soared above this world, where my enjoyments have been intellectual joys.